JIS G3454 Stpg370 Steel Pipes Carbon Steel Pipes
This japanese Industrial Standard specifies the carbon steel pipes, hereinafter referred to as the “pipes”, used for pressure service at an approximate maximunn temperature of 350℃. The pipes for high pressure sevice shall be in accordance with JIS G 3455. Standard: JIS G 3454 JIS G 3455 JIS G 3456 Japanese Industrial Standard Uses: For conveying oil ,gas and other fluid
Chemical Composition (%):
| Steel grade | Chemical composition,%,max | ||||||||
| C | Mn | Si | S | P | Cr | Ni | Cu | V | |
| Carbon steel | 0.22 | 0.65 | 0.37 | 0.04 | 0.035 | 0.25 | 0.3 | 0.3 | – |
| Low alloy steel | 0.2 | 1.65 | 0.6 | 0.035 | 0.033 | 0.8 | 0.3 | 0.3 | 0.1 |
Mechanical Properties:
| Steel grade | Tensile strength,MPa | Yield strength,MPa | Elongation,% |
| K34 | 334 | 206 | 24 |
| K38 | 373 | 235 | 22 |
| K42 | 412 | 245 | 21 |
| K50 | 491 | 343 | 20 |
| K52 | 510 | 353 | 20 |
| K55 | 540 | 373 | 20 |
World standard comparative table
| KS | ASTM | JIS | DIN | BS | |||||
|
Grade Number |
GRADE |
Grade Number |
GRADE |
Grade Number |
GRADE |
Grade Number |
GRADE |
Grade Number |
GRADE |
| D 3562 | SPPS 370 | A 53 | Gr A | G-3454 | STPG 370 | 1626 | St 37.0 | 3601 | ERW 360 |
| SPPS 38 | A 135 | Gr A | (STPG 38) | 1628 | St 37.4 | 778 | S 360 | ||
| 1629 | St 37.0 | HFS 22 | |||||||
| 1630 | St 37.4 | CDS 22 | |||||||
| 17172 | StE240.7 | ERW 22 | |||||||
| SPPS 410 | A 53 | Gr B | STPG 410 | 1626 | St 44.0 | 3601 | ERW 360 | ||
| SPPS 42 | A 135 | Gr B | (STPG 42) | 1628 | St 44.4 | S 360 | |||
| 1629 | St 44.0 | HFS 27 | |||||||
| 1630 | St 44.4 | CDS 27 | |||||||
| 17172 | StE290.7 | ERW 27 | |||||||
